Ready to make your own invisible ink? Follow these simple instructions and send secret messages to all your friends.
What you need:
What you need:
- Full cream milk
- Cotton tips
- An iron
- Paper
- An adult to help with the iron
What to do:
The heat from the iron actually burns the fat in the milk causing the colour of the milk to change.
- Dip the cotton tip into the milk and make sure it's soaked through.
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Use the milky cotton tip to write a message on the paper.
- Allow the milk to dry on the paper. This should take about 30 minutes.
- Get an adult to iron the paper. Run the iron over the paper a few times and the secret message should appear on the paper.
The heat from the iron actually burns the fat in the milk causing the colour of the milk to change.
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